- v. 即席演说；即兴演奏；当场作成
manage in a makeshift way; do with whatever is at hand;
"after the hurricane destroyed our house, we had to improvise for weeks"
perform without preparation;
"he extemporized a speech at the wedding"
- He had to extemporize because he had forgotten to bring his notes.
I played the organ at which he had extemporized so often.出自： E. Heath